For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.

The Voyager 1 spacecraft had flown past this moon of Jupiter, catching the first glimpse of active volcanism on a world other than Earth. Umbrella-shaped outbursts of magmatic matter rocketed into ...

A composite image of Jupiter taken by the JWST's NIRCam, showing the planet's rings and two of its moons, Amalthea and Adrastea. The blue glow around Jupiter's poles is the aurora.

Ice moons such as Jupiter’s Europa and Saturn’s Enceladus are currently at the forefront of the search for extraterrestrial life, as it is believed that beneath their thick icy shells there ...

A massive NASA spacecraft is ready to set sail for Jupiter and its moon Europa. The craft, named Europa Clipper, will determine if conditions there could support life.

The James Webb Space Telescope's Near captured imagery of Jupiter and its moons Amalthea and Adrastea on July 27, 2022. Also visible in the false color Near Infrared Camara (NIRCam) images are the ...

Jupiter's fifth moon to be discovered, and the fifth-largest of the planet's 95 known moons, is Amalthea. It was found in 1892 by Edward Emerson Barnard, an American astronomer who was an ...

The moon holds the third closest orbit of all of Jupiter’s known moons (of which 95 are known), and takes about half an Earth day to circle around the giant planet. It’s tiny but certainly mighty.

Amalthea, just one of Jupiter's 95 official moons, was first discovered by Edward Emerson Barnard in 1892. It is about 100 miles wide and clumsily shaped like a potato because it lacks the mass to ...

The only two moons that orbit closer are Adrastea and Thebe, of which the former is considerably smaller than Amalthea, the smallest Jovian moon in the system, and the latter wasn't discovered and ...

Adrastea, Jupiter’s second-closest inner moon, boasts an irregular shape, and details about its physical characteristics remain obscured, although it may have a composition similar to Amalthea.